Brake-beam.



ION TIL-ED UGT. 30, i905.

2 SHEETS-SHEET l.

Lily,

Y No.81sf91a.

H. B. RGBISGHUNG.

BRAKE BEAM.

APPLIQATIONHLED 00T. 30.1905.

2 SHEETS-SHEET 2.

' UNITED sTATEs PATENT ,FFGE

HENRY B. ARORIsCHUNe., OE EALAMAZOO, aIiCIIIGAN, AssIiiNOR 'ro CHICAGO RAILWAY EQUIPMENT COMPANY, or Cinca-io, ILLI- NOIs, A CORPORATION Or ILLINOis.

BRAKE-BEAM.

.To all whom it may concern:

Be it known that I, HENRY B. ROBIsoHUNc, a citizen of the United States', residing at the city of Kalamazoo, county of Kalamazoo, State of Michigan, have invented a certain new and useful Improvement in Brake- Beams, of which the following is a full,`clear, and exact description, such as will enable others skilledl in the art to which it appertains Io to make and use the same, reference being had to the accompanying drawings, iorrn'ing part of this specification, in which-v' Figure 1 is a rear'view of the removable brake-head. Fig. 2 is'a front view'r of lthe thrust-block. Fig. 3 is a detail view of the wedge-key. Fig. 4 is a sectional view showing the brake-head assembled on/the thrustblock: Fig. 5 is a sectional view' on line 5 5 of Fig. 4. Fig. 6 is an end elevational view of 2o a modified form of removable brake-head.

Fig. 7 is a perspective view of the brake-head, and Fig. 8 is a perspective view of the thrustblock.

This-invention relates to a ynew and useful improvement in brake-beams, the object being to enable the head to be readily and quickly removed in making repairs without necessitating the unhanging' of the beam lo'r the disturbance of the integrity of the truss.

With this object in view the invention' consists in the construction, arrangement, and combination of the severalparts, all as will bc hereinafter described, and afterward pointed out in the claims.

In service the brake-shoes, which are earried by the brake-head, being secured in position by a wedge-key passing tl'irough the perforated lugs on the i'ront face of' the head in a well-known manner, are made removable in order that they may be replaced when worn. Frequently in careless inspection these shoes are permitted to Wear downto such an ex- 'tent that the fastening-lugs are ground oil by the wheels until finally the shoes drop out of the head, because of the destruction ot' the securing Ineans. It is notv ,(lesigned, however, in practice that the securing-lugs for the shoes should be worn, as it is the intention to renew they shoes at frequent intervals, so as to lprotect the heads. llowevr, wlhen the shoes are ground olf and the heads come in direct contact with the Wheels it is necessary to renew the heads as well as the shoes;

sus

Specification of Letters Patent.

Application mei october 30, 1905. serai No. 285.037.

` aiented Feb. 27, i906.

and the principal object. of my present invention is to provide a removable brake-head carrying a removable shoe, so that when the brake-head is-worn by Contact with the wheel so that it no longer afl'ords :I pro )er support 'for the brake-shoe the head ma',V be removed and a new head substituted.

A well-known type of trussed brake-beam is shown in the accompanying drawings', in which the thrust-block is provided with :i socket to receive a horizontally-disposed key on the back of the head. The widest portion ofthe socket in the thrust-bleek is at the outer end thereof', so that when it is desired to remove the head theV same can be pulled outwardly after the removal of the wedgekey, which is vertically disposed and in the transverse plane with respect to the socket ln the drawings l have not shown the com pression and tension members, as the same may be ol usual well-known construction 3 indicates the thrust-block, in which tne end of the compression member is seated :uid through which the tension-rod may pass, as usual. The 'front face oi this thrust-block is provided with a horizontallydisposei tapered dovetail recess 5, the widest portion being at the outer end, in 'which lits a lockingwedee 6 on the back of the brake-head 7.

'lie upperand lower projections on the face of the thrust-block. which form t hesoeket,

are provided with :dining openings, with whiei an opening in the locking-weiige o is designed to register when the brake-hostil is in position, and through these registering openin s is arranged a Wedge-key S, said wcdgc-rey S being provided with a cotter-pin in its lower end to prevent li ts accidental dis placement. lf desired, this wedge-key may )ass through openings in flanges on the back ofi the brake-head above and below the made tapered, so that in practice gravity will cause the same to work down and prevent the brake-head working loose on the thrustblock.

In Figs. 6, 7, and 8 i have Illustrated a modified form of rn invention, wherein the top and'bottoni wal s of the horizontally-disposed g'roove in thc thrust-block are cut away, as at 5, the locking-wedgc on the brake-head being also cut away at the center, as at o, Perforated lugs or ears 3 an thrust-block. Wedge-key 8 preferably 9 IOO formed on the outer end of' the thrust-block, tally-disposed tapered socket Widest' at its, l

which cooperate with a perforated lug or ear outer end, of a removable brake-head having 7n on the brake-head, a cotterin passing` g a horizontally-disposed ltapered projection through the pertorations of saidugs or ears thereon forinterlocking with said socket, a to hold the brake-head in position. 1 renewable brake-shoe carried by said brake- The vertically-disposed recessesin the walls l head, and a verticallvdisposed Wedge-key ofthe socket on the thrust-block and thelocke for locking the brake-head in position; subing-wedge of the brake-head enable the rei stantially as described. moval of the head with less horizontal disl 3. The herein-described with respect to the construction of'Figs. 1 to with a horizontally-disposed dovet-aiiing ta- 5, inclusive. In the construction shown in ered socket for the attachment of a brake- Figs. l to 5 to remove the head it is necesi iiead; substantially as described.

sary to slide the'same horizontally the full width of the head or more-say three and one-half inches. in Figs. 6, 7, and 8, inclusive, the head can be projection for attachment to a thrust-block; removed by a slidinr movement of, say, apsubstantially as described. proximately one an( one-eighth inches, or to 5. In a trussed brake-beam, the combinaa position where the recesses on the head tion witha thrustblock and brake-head, one aline with the lugs on the thrust-block, when .of said parts having a horizontally-disposed brake-beams, the same being provided with the head can be lifted vertically until disen tapered socket and the other of said parts having a horizontally-disposed tapered progaged. The. advantage .of this arrangement t 1s that less room at the end of the brake beam is required to remove the head. in

some trucks there is not enough clearance beg tween the end ofthe brake-beam and the] tially as described.

ject-ion for interlocking with said socket `said projection and the walls of the socket being truck -frame or arch-bars` to admit of sliding 6. The herein-described thrust-block for the heads outwardly a distance of three and one-half inches, und consequentlythis modilied arrangement permits of the removal of the head in a. more limited space.

l Iaving thus described my invention, what provide a vertically-disposed opening; sub

with a horizontally-disposed tapered socket for the attachment of a )rake-head, the Walls' l claim, and desire to secure by Letters latstantiallyas described. cnt, is-

l. In a trussed braid-beam, the combina# i brake-beams, the same being .rovided yyitha tion ofa thrust'bloek and a removable brake- I horizontally-disposed ta ere projection for head, one of said parts having a horizontallyattachment to a thrust-b ook, said projection disposed tapered socket, and the. other of said parts having a horizontally-dis )osedtapered i its ends; substantially as descri ed. projection for interlocking with said socket, th(` taper being so arranged as to' ermit lon fitudinal and outward removal o the brake head, and a vertieally-disposed wedge-key for engaging the locking projection in its socket; substantially as described.

2. ln a, trussed brakebeam, the combination with a thrust-block having a horizonsi ature, in the presence of two witnesses, this 29th day ofSeptcmber, 1905.

HENRY B. ROBISCl-UNG. Witnesses:

E. B. Lexon,

DAVID S. GEER.

y thrust block for.l placement or movement than 1s necessary i trussed brake-beams,thesamebeingprovided 4. The herein-described brake-head forl In the modilieation shown l a horizontally-dispt-)scd tapered dovetailing" trussed brake-beams, the same being provided of said socket heilig recessed or cut away to y 7. The herein-described brake-head for In testimony whereof I hereunto affix my recessed for the purposes described; substalb being out away or recessed at a ointbet'vee'n 

